can anybody shed some light on how to construct programs to accept plugins, and how are the plugins actually done? prefer some details. Thanks in advance!

Whenever I''ve used plug-ins in my programs, I''ve use renamed dll''s. Create a dll header file that specifies the base interfaces on the plug-in you want. Such as (off the top of my head, so it probably won''t compile):

#ifndef _MYPLUGIN_H_
#define _MYPLUGIN_H_

declspec(dllexport) stdcall int GetVersion(void);
declspec(dllexport) stdcall char ** EnumerateFunctionNames(void);

#endif

Then when you want to use the plug-in call LoadLibrary on the plug-in file name, and check it for the functions in the header. If they aren''t there then it isn''t a valid plug-in. Then you can use the interfaces you specified to access the desired functionality.